Malicious PDF — malware analysis report

Static analysis result for SHA-256 016805370c78391c…

MALICIOUS

PDF

42.8 KB Authoring application: SWFTools
MD5: 904f4a66c9e3652fed6490ae65246932 SHA-1: 9c30edea1942be77683b026b25d40ead35b1fabf SHA-256: 016805370c78391c8f8785e93c441678df57fd6819872f4092ba3960bc1d7db8
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious File

The PDF file was flagged by multiple heuristics, including ClamAV and an ML classifier, as malicious. The PDF_SEO_LINK_FARM heuristic indicates the presence of a mass external PDF link farm with 31 links, suggesting a phishing or SEO manipulation campaign. The embedded URLs are likely used to redirect users to malicious sites or download further payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 3

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://therhinestoneanchor.com/uploads/1/3/0/6/130639896/7156962.pdf
    • http://northvanmucisacademy.com/uploads/1/3/0/8/130873987/materurekogure_visalodefa.pdf
    • http://makingmemorieswithscrapbooking.com/uploads/1/3/0/5/130543190/pekafepafo-sizoruveper-rubogasanag.pdf
    • http://golitzconsulting.com/uploads/1/3/0/6/130605389/a9a95.pdf
    • http://rosholtcorp.com/uploads/1/3/0/2/130287971/murutexudemewelodeti.pdf
    • http://merlene.ca/uploads/1/3/0/2/130289549/busulirodagujag.pdf
    • http://trinityglobalministry.org/uploads/1/3/0/3/130323929/52440e5919.pdf
    • http://harrisonashtonphoto.com/uploads/1/3/0/4/130476649/bikosukevubomopit.pdf
    • http://mscmyservicecleaning.com/uploads/1/3/0/4/130435835/tegago.pdf
    • http://goodsamrehabilitation.org/uploads/1/3/0/4/130435588/5947493.pdf
    • http://bizniznews.com/uploads/1/3/0/3/130379549/1428082.pdf
    • http://nwm8.club/uploads/1/3/0/4/130483632/7899605.pdf
    • http://myedmontonaccountants.com/uploads/1/3/0/6/130604185/bdc78885d84141c.pdf
    • http://nicole-florio.com/uploads/1/3/0/2/130270979/f842331ba0.pdf
    • http://techtoberfestoc.com/uploads/1/3/0/6/130621588/19571106.pdf
    • http://elpasoborderyouth.org/uploads/1/3/0/4/130489696/739d5c1f4c.pdf
    • http://www.nakedstrangers.net/uploads/1/3/0/2/130289475/nozuk.pdf
    • http://nursingarmpillow.com/uploads/1/3/0/7/130775372/dajasibuw.pdf
    • http://www.iowabirthactivists.org/uploads/1/3/0/6/130621695/pagudoz.pdf
    • http://nashvillemobilepetgrooming.com/uploads/1/3/0/7/130776358/zopexojafetejutiva.pdf
    • http://my-riverside-dui-lawyer.com/uploads/1/3/0/7/130775823/fb5da.pdf
    • http://abmaquiladora.com/uploads/1/3/0/5/130588685/3488588.pdf
    • http://treasures4yourheart.com/uploads/1/3/0/5/130540897/130540897.html#building+construction+illustrated+francis+dk+ching+pdf
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002d54.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D54 16036 bytes
font_01_sfnt_off0000448f.bin
b85e90a99e75d44a4a0b930dc02fbeb25faaa6d16df4da1a8d473f3510c955bf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x448F 8352 bytes

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